Iron Age landscape changes in the Benoue River Valley, Cameroon
文献类型：期刊论文
| 作者 | Wright, David K.3,4; MacEachern, Scott5; Ambrose, Stanley H.6; Choi, Jungyu4; Choi, Jeong-Heon7; Lang, Carol1; Wang, Hong2,3 |
| 刊名 | QUATERNARY RESEARCH
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 92期号:2页码:323-339 |
| 关键词 | Holocene Savanna West Africa Agriculture Anthropogenic soils Niche construction Soil carbon Nitrogen isotopes |
| ISSN号 | 0033-5894 |
| DOI | 10.1017/qua.2019.25 |
| 通讯作者 | Wright, David K.(daudi.wright@gmail.com) |
| 英文摘要 | The introduction of agriculture is known to have profoundly affected the ecological complexion of landscapes. In this study, a rapid transition from C-3 to C-4 vegetation is inferred from a shift to higher stable carbon (C-13/C-12) isotope ratios of soils and sediments in the Benoue River Valley and upland Fali Mountains in northern Cameroon. Landscape change is viewed from the perspective of two settlement mounds and adjacent floodplains, as well as a rock terrace agricultural field dating from 1100 cal yr BP to the recent past (<400 cal yr BP). Nitrogen (N-15/N-14) isotope ratios and soil micromorphology demonstrate variable uses of land adjacent to the mound sites. These results indicate that Early Iron Age settlement practices involved exploitation of C-3 plants on soils with low delta N-15 values, indicating wetter soils. Conversely, from the Late Iron Age (>700 cal yr BP) until recent times, high soil and sediment delta C-13 and delta N-15 values reflect more C-4 biomass and anthropogenic organic matter in open, dry environments. The results suggest that Iron Age settlement practices profoundly changed landscapes in this part of West Africa through land clearance and/or utilization of C-4 plants. |
| WOS关键词 | DOSE-RATES ; LAND-USE ; HOLOCENE ; FORESTS ; AFRICA ; SINGLE ; N-15 ; LUMINESCENCE ; ABUNDANCES ; ISOTOPES |
| 资助项目 | National Geographic Committee for Research and Exploration grant[9404-13] ; Seoul National University faculty research grant |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000487316500004 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Geographic Committee for Research and Exploration grant ; Seoul National University faculty research grant |
| 源URL | [http://ir.ieecas.cn/handle/361006/13345]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Wright, David K. |
| 作者单位 | 1.Univ York, Dept Archaeol, York YO1 7EP, N Yorkshire, England 2.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 4.Univ Oslo, Dept Archaeol Conservat & Hist, N-0315 Oslo, Norway 5.Duke Kunshan Univ, Div Social Sci, Kunshan 215316, Jiangsu, Peoples R China 6.Univ Illinois, Dept Anthropol, 109 Davenport Hall, Urbana, IL 61801 USA 7.Korea Basic Sci Inst, Dept Earth & Environm Sci, Chungbuk 28119, South Korea |
| 推荐引用方式 GB/T 7714 | Wright, David K.,MacEachern, Scott,Ambrose, Stanley H.,et al. Iron Age landscape changes in the Benoue River Valley, Cameroon[J]. QUATERNARY RESEARCH,2019,92(2):323-339. |
| APA | Wright, David K..,MacEachern, Scott.,Ambrose, Stanley H..,Choi, Jungyu.,Choi, Jeong-Heon.,...&Wang, Hong.(2019).Iron Age landscape changes in the Benoue River Valley, Cameroon.QUATERNARY RESEARCH,92(2),323-339. |
| MLA | Wright, David K.,et al."Iron Age landscape changes in the Benoue River Valley, Cameroon".QUATERNARY RESEARCH 92.2(2019):323-339. |
入库方式： OAI收割
来源：地球环境研究所
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